Operating Instructions MA 41
8100456_OI_MA41_EN_15a 13 8100456-8 04/15
5 Measurement Methods of Audiometry
Remove any obstructions which will interfere with the earphone cushion
placement over the ear (e.g. hats, eyeglasses). Always use the headphones with
appropriate padded ear cushions.
Ensure the headphones are placed correctly over the patient’s ears and that the
red is over the right ear and the blue is over the left ear. Adjust the headband
of the headphones so that the receivers are at the correct height (the sound
output grid on the inside of the headphone should be directly over the ear
canal).
Ask the patient to press the button on the patient response switch when the
tone is heard, even if it is barely audible.
For hygienic reasons it is important to disinfect the ear cushions on the
headphone between patients (see chapter 8).
5.1 Tone Audiometry
The MA 41 supports tone audiometric testing methods. The following testing
methods can be started in the tone audiometry mode and the results can be
saved to the instrument.
• Air conduction testing
• Bone conduction testing
• Sound field testing
• Pure tone hearing threshold
• Uncomfortable Loudness (UCL)
• Aided sound field thresholds (Aided)
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